package net.yla.smartbus.core.util;

import org.springframework.stereotype.Component;

/**
 *@author:LiuJie
 *@date:2021/5/25
 *@description:坐标转换工具升级2.0
 */
@Component
public class GisPoint {
    public static double pi = 3.1415926535897932384626;
    public static double x_pi = 3.14159265358979324 * 3000.0 / 180.0;
    public static double a = 6378245.0;
    public static double ee = 0.00669342162296594323;

    /**
     * @param longitudeOne 经度1
     * @param latitudeOne  纬度1
     * @param longitudeTwo 经度2
     * @param latitudeTwo  纬度2
     * @return
     */
    public int getDistance(Double longitudeOne, Double latitudeOne, Double longitudeTwo, Double latitudeTwo) {
        Double f = ((latitudeOne + latitudeTwo) / 2) * Math.PI / 180;
        Double g = ((latitudeOne - latitudeTwo) / 2) * Math.PI / 180;
        Double l = ((longitudeOne - longitudeTwo) / 2) * Math.PI / 180;
        Double sg = Math.sin(g);
        Double sl = Math.sin(l);
        Double sf = Math.sin(f);
        Double a = 6378137.0;
        Double fl = 1 / 298.257;
        sg = sg * sg;
        sl = sl * sl;
        sf = sf * sf;
        Double s = sg * (1 - sl) + (1 - sf) * sl;
        Double c = (1 - sg) * (1 - sl) + sf * sl;
        Double w = Math.atan(Math.sqrt(s / c));
        Double r = Math.sqrt(s * c) / w;
        Double d = 2 * w * a;
        Double h1 = (3 * r - 1) / 2 / c;
        Double h2 = (3 * r + 1) / 2 / s;
        return (int) (d * (1 + fl * (h1 * sf * (1 - sg) - h2 * (1 - sf) * sg)));
    }

    /**
     * 获取两个GPS点之间的距离纬度在前,经度在后
     *
     * @param lat1
     * @param lng1
     * @param lat2
     * @param lng2
     * @return
     */
    public static int gainDistance(Double lat1, Double lng1, Double lat2, Double lng2) {
        Double f = ((lat1 + lat2) / 2) * Math.PI / 180;//角度
        Double g = ((lat1 - lat2) / 2) * Math.PI / 180;//角度
        Double l = ((lng1 - lng2) / 2) * Math.PI / 180;//角度
        Double sg = Math.sin(g);//g正正弦值
        Double sl = Math.sin(l);//l的正弦值
        Double sf = Math.sin(f);//f的正弦值
        Double a = 6378137.0;
        Double fl = 1 / 298.257;
        //三个正弦值的平方
        sg = sg * sg;
        sl = sl * sl;
        sf = sf * sf;

        Double s = sg * (1 - sl) + (1 - sf) * sl;
        Double c = (1 - sg) * (1 - sl) + sf * sl;
        Double w = Math.atan(Math.sqrt(s / c));
        Double r = Math.sqrt(s * c) / w;
        Double d = 2 * w * a;
        Double h1 = (3 * r - 1) / 2 / c;
        Double h2 = (3 * r + 1) / 2 / s;
        return (int) (d * (1 + fl * (h1 * sf * (1 - sg) - h2 * (1 - sf) * sg)));
    }



   /* public Boolean isPointInPolygon(PointDo pointDo, PointDo[] data, Integer n) {
        //X代表纬度
        //Y代表经度
        Boolean flag = false;
        for (int i = 0; i < n; i++) {
            if (pointDo.getLongitude() < data[i].getLongitude() && pointDo.getLongitude() < data[(i + 1) % n].getLongitude())
                continue;
            if (data[i].getLatitude() < pointDo.getLatitude() && data[(i + 1) % n].getLatitude() < pointDo.getLatitude())
                continue;
            Double dx = data[(i + 1) % n].getLatitude() - data[i].getLatitude();
            Double dy = data[(i + 1) % n].getLongitude() - data[i].getLongitude();
            Double t = (Double) ((pointDo.getLatitude() - data[i].getLatitude()) / dx);
            Double y = t * dx + data[i].getLongitude();
            if (y < pointDo.getLongitude() && t >= 0 && t <= 1)
                flag = !flag;
        }
        return flag;
    }*/


    public static double transformLat(double x, double y) {
        double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(y * pi) + 40.0 * Math.sin(y / 3.0 * pi)) * 2.0 / 3.0;
        ret += (160.0 * Math.sin(y / 12.0 * pi) + 320 * Math.sin(y * pi / 30.0)) * 2.0 / 3.0;
        return ret;
    }

    public static double transformLon(double x, double y) {
        double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * pi) + 20.0 * Math.sin(2.0 * x * pi)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(x * pi) + 40.0 * Math.sin(x / 3.0 * pi)) * 2.0 / 3.0;
        ret += (150.0 * Math.sin(x / 12.0 * pi) + 300.0 * Math.sin(x / 30.0 * pi)) * 2.0 / 3.0;
        return ret;
    }

    public static double[] transform(double lat, double lon) {
        if (outOfChina(lat, lon))
        {
            return new double[] { lat, lon };
        }
        double dLat = transformLat(lon - 105.0, lat - 35.0);
        double dLon = transformLon(lon - 105.0, lat - 35.0);
        double radLat = lat / 180.0 * pi;
        double magic = Math.sin(radLat);
        magic = 1 - ee * magic * magic;
        double sqrtMagic = Math.sqrt(magic);
        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
        double mgLat = lat + dLat;
        double mgLon = lon + dLon;
        return new double[] { mgLat, mgLon };
    }

    public static boolean outOfChina(double lat, double lon) {
        if (lon < 72.004 || lon > 137.8347)
            return true;
        if (lat < 0.8293 || lat > 55.8271)
            return true;
        return false;
    }

    /**
     * 84 to 火星坐标系 (GCJ-02) World Geodetic System ==> Mars Geodetic System
     *
     * @param lat
     * @param lon
     * @return
     */
    public static double[] gps84_To_Gcj02(double lat, double lon) {
        if (outOfChina(lat, lon))
        {
            return new double[] { lat, lon };
        }
        double dLat = transformLat(lon - 105.0, lat - 35.0);
        double dLon = transformLon(lon - 105.0, lat - 35.0);
        double radLat = lat / 180.0 * pi;
        double magic = Math.sin(radLat);
        magic = 1 - ee * magic * magic;
        double sqrtMagic = Math.sqrt(magic);
        dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * pi);
        dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * pi);
        double mgLat = lat + dLat;
        double mgLon = lon + dLon;
        return new double[] { mgLat, mgLon };
    }

    /**
     * * 火星坐标系 (GCJ-02) to 84 * * @param lon * @param lat * @return
     * */
    public static double[] gcj02_To_Gps84(double lat, double lon) {
        double[] gps = transform(lat, lon);
        double lontitude = lon * 2 - gps[1];
        double latitude = lat * 2 - gps[0];
        return new double[] { latitude, lontitude };
    }

    /**
     * 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换算法 将 GCJ-02 坐标转换成 BD-09 坐标
     *
     * @param lat
     * @param lon
     */
    public static double[] gcj02_To_Bd09(double lat, double lon) {
        double x = lon, y = lat;
        double z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * x_pi);
        double theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * x_pi);
        double tempLon = z * Math.cos(theta) + 0.0065;
        double tempLat = z * Math.sin(theta) + 0.006;
        double[] gps = { tempLat, tempLon };
        return gps;
    }

    /**
     * * 火星坐标系 (GCJ-02) 与百度坐标系 (BD-09) 的转换算法 * * 将 BD-09 坐标转换成GCJ-02 坐标 * * @param
     * bd_lat * @param bd_lon * @return
     */
    public static double[] bd09_To_Gcj02(double lat, double lon) {
        double x = lon - 0.0065, y = lat - 0.006;
        double z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * x_pi);
        double theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * x_pi);
        double tempLon = z * Math.cos(theta);
        double tempLat = z * Math.sin(theta);
        double[] gps = { tempLat, tempLon };
        return gps;
    }

    /**将gps84转为bd09
     * @param lat
     * @param lon
     * @return
     */
    public static double[] gps84_To_bd09(double lat, double lon) {
        double[] gcj02 = gps84_To_Gcj02(lat, lon);
        double[] bd09 = gcj02_To_Bd09(gcj02[0], gcj02[1]);
        return bd09;
    }

    public static double[] bd09_To_gps84(double lat, double lon) {
        double[] gcj02 = bd09_To_Gcj02(lat, lon);
        double[] gps84 = gcj02_To_Gps84(gcj02[0], gcj02[1]);
        //保留小数点后六位
        gps84[0] = retain6(gps84[0]);
        gps84[1] = retain6(gps84[1]);
        return gps84;
    }

    /**
     * 保留小数点后六位
     *
     * @param num
     * @return
     */
    private static double retain6(double num) {
        int temp = (int) (num * 1000000);
        double result = (double) temp / 1000000;
        return result;
    }

    /**保留小数点后六位
     * @param num
     * @return
     */
   /* private static double retain6(double num)
    {
        return Math.Round(num, 6);
    }*/


}
